<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>subapp2</title>
</head>

<body>
    <div>subapp2</div>
</body>
<script>
    alert('subapp2')
</script>
</html>